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Home >> Buick >> 2017 >> LaCrosse Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission Range Select Lever >> Diagnostic Information and Procedures >> DTC P174C: Transmission Range Control Module Wheel Speed Signal Message Counter >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON/Vehicle in Service Mode.
  2. Verify that DTC C0035, C0040, C0045, or C0050 is not set in the K17 Electronic Brake Control Module.
    • If any listed DTC is not set 
  3. Replace the K17 Electronic Brake Control Module.
  4. Verify the DTC does not set while operating the vehicle under the Conditions for Running the DTC.
    • If the DTC sets 

      Replace the module that set the DTC.

    • If the DTC does not set 
  5. All OK.